PLOHA INDICA. streams, in: sheltered valleys, are poplars, willows, and pro- bably ash or walnut. Where the Aran enters Nipal, at Tin- gri, the vegetation appears (from a small collection we have received thence) to be similar to that of Kunawar. At Lhassa the country is open and stony, and without trees, except such as arc cultivated, just as in Western Tibet. Of these, the apricot is the only one of which we have any certain knowledge. Vines have been stated to grow in the city of Lhassa (Kumboldt, ' Asie Ccnt#ile'), -but this has been ccw+xqjKgtcd by all our informants. Further cast, in the di- rection of China, we learn from Hue and Gahct's Travels 1J<a# $ia mountains .arc covered with forests, while towards tite scKtfth-cast, in the valley of the Yaru, a subtropical climate is soon reached, tea, rice, and cotton being all cultivated. IIJ. Eastern, India. The axis, or watershed, of the great meridional chain which iŤ Continuous with the Koucnlun must be sought as far north as 35° N. lat., where it penetrates between the waters of the Hoangho and those of the Yang-tsc-Kiang. It is, however, probable that the watershed of the Yaru riycr lies considerably further south than this chain, and occupies a position nearly parallel to that river, till it reaches 28° N, lat, in 98° B. long", after which its direction is nearly north and south, and it be- comes the axis" of the Malayan peninsula, which separates Ava and Siani on the one hand from4 Yunaii and Cochin-China on the other. To the north of this chain, in Tibet, lies a vast imknown tract, in which the hcacl-u utora of the Yan^-tee-Kimig perhaps ramify, as well as those of the.4Va river, which is identified by Chinese geographers with Ute Neay-Kiang of Cochin-Chiua. On the southern face of tlic chain the Dihoug, the Brahma- putra, and the Irawadi; have their sources.. It may therefore be considered to b* the boundary of India in tfris direction, a$ ihe frontiers of Ava and China run nearly along it.